Sustaining Himalayan Water Resources in a Changing Climate (SusHi-Wat): Monthly maps of wet and dry snow over a Himalayan river basin (January 2015 to July 2017)

This dataset contains monthly maps of dry and wet snow for a Himalayan river basin in northern India. The data were collected as part of the Sustaining Himalayan Water Resources in a Changing Climate (SusHi-Wat) project aimed at improving our understanding on how water is stored in, and moves through, a Himalayan river system in northern India.

The maps were obtained by combining satellite remote sensing images from Sentinel-1 and the Moderate Resolution Imaging Spectroradiometer (MODIS). The resolution of the maps is 500m and the coordinate system is EPSG:4326. The dry snow data correspond to the MODIS land cover product (MCD12Q1). The wet snow data were obtained from Sentinel-1 by applying a -2dB threshold on the backscatter ratio between a Sentinel-1 image with wet snow and a reference Sentinel-1 image with only dry snow.

The possible pixel values are:

0: no snow,

1-100: wet snow cover fraction,

101-200: dry snow cover fraction with an offset of 100,

240: missing Sentinel-1 data,

250: pixel wrongly identified as wet snow by Sentinel-1 (false positives),

255: fill value.

The images are GeoTIFF formatted.

Date (Publication): 2018-03-16T15:35:39

Date (Creation): 2018-03-16T15:35:39

Citation identifier: https://catalogue.ceda.ac.uk/uuid/62cc25997f58459581879553f3a25e19

Citation identifier: Centre for Environmental Data Analysis (CEDA) / 62cc25997f58459581879553f3a25e19

Citation identifier: doi / http://dx.doi.org/10.5285/62cc25997f58459581879553f3a25e19

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Unavailable	Snapir, Boris	Unavailable	Author
Unavailable	Momblanch, A	Unavailable	Author
Unavailable	Jain, S.K.	Unavailable	Author
Unavailable	Waine, T.W.	Unavailable	Author
Unavailable	Holman, I.P.	Unavailable	Author
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	Custodian
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	Owner
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	Distributor
Unavailable	Adeloye, Adebayo	Unavailable	Principal investigator
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	pointofContact
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	Publisher

Maintenance and update frequency: Unknown

Update scope: Dataset

Keywords

tendency_of_atmosphere_mass_content_of_molecular_hydrogen_due_to_emission
tendency_of_atmosphere_mass_content_of_propene_due_to_emission
tendency_of_atmosphere_mass_content_of_radon_due_to_emission
Himalayan
wet
dry
snow
hydrology
Sentinel-1
MODIS
sushi-wat

GEMET - INSPIRE themes, version 1.0

atmospheric conditions

Access constraints: Other restrictions

Other constraints: Access to these data is available to any registered CEDA user. Please Login or Register for a CEDA account to gain access.

Use constraints: Other restrictions

Other constraints: Under the following licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/, appropriate use of these data may fall under any use. This message is intended as guidance, always read the full licence. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.

Spatial representation type: Grid

Language: English

Topic category

Climatology, meteorology, atmosphere

Begin date: 2015-03-01T00:00:00

End date: 2017-07-31T22:59:59

Unique resource identifier: WGS 84

Distribution format

Name	Version
The images are GeoTIFF formatted.

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	Distributor

OnLine resource

Protocol	Linkage	Name
	https://catalogue.ceda.ac.uk/uuid/62cc25997f58459581879553f3a25e19	CEDA Data Catalogue Page

OnLine resource

Protocol	Linkage	Name
	http://data.ceda.ac.uk/badc/deposited2018/sushi-wat_snow-maps/data	DOWNLOAD

OnLine resource

Protocol	Linkage	Name
	https://www.sciencedirect.com/science/article/pii/S0303243418305749	A method for monthly mapping of wet and dry snow using Sentinel-1 and MODIS: Application to a Himalayan river basin

Hierarchy level: Dataset

Conformance result

Title: Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Date (Publication): 2010-12-08

Statement: Data was prepared and sent to Centre for Environmental Data Analysis (CEDA) for archiving by the project team.

Metadata

File identifier: 62cc25997f58459581879553f3a25e19 XML

Metadata language: English

Character set: UTF8

Hierarchy level: Dataset

Date stamp: 2025-08-20T02:16:27

Metadata standard name: UK GEMINI

Metadata standard version: 2.3

Metadata author

Organisation name	Individual name	Electronic mail address	Role
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	Point of contact

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